Communication control device

The invention provides a communication control device, and relates to the technical field of industrial control. The communication control device comprises a main control chip and a plurality of CANopen main stations, and the main control chip is provided with at least two CAN controllers; the CANopen master stations are connected with the CAN controllers in a one-to-one correspondence manner, the main control chip and the plurality of CANopen master stations are integrated on a PCB (Printed Circuit Board), and different slave stations are hung under each CANopen master station; and the main control chip is used for interacting with the upper computer, distributing a control instruction issued by the upper computer to the corresponding CANopen master station, and processing a first message uploaded by each CANopen master station. The communication scheme proposed based on the communication control device provided by the embodiment of the invention can reduce the probability of disconnection of the slave stati